Pardon my piping in about the "incline" thing & stiff shifter movement...but isn't that one of the tests that Bill says to use as a marker to start looking into the clutch hydraulic system?
I've been using the BMW stuff for a while and I notice that it seems to take longer than the GM fill to get flowing when it's cold. It seems that the BMW stuff needs some heat to make to the shifter have almost no resistance at all. The GM stuff seems to not have that issue, or at least that's what I've found here in lower NY state. We don't get as cold as Chi-town though.
It's hard for me to describe, but with the BMW stuff cold you know you're moving the shifter and with the GM stuff cold you almost can't detect you have arrived at the selected gear till the shifter just has no more travel. Is that what you are talking about Lee?
Tom